Sigma Octantis

Thuban

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thuban star,alpha draconis

Thuban, Alpha Draconis (α Dra), is a spectroscopic binary star system located in the constellation Draco. Even though it has the designation Alpha, it is… Read More »Thuban

Gacrux

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gamma crucis

Gacrux, Gamma Crucis (γ Cru), is a red giant star located in the southern constellation Crux. With an apparent magnitude of 1.63, it is the… Read More »Gacrux

Acrux

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alpha crucis

Acrux, Alpha Crucis (α Cru), is a multiple star system located in the constellation Crux. It is the brightest of the stars that form the… Read More »Acrux

Achernar

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alpha eridani

Achernar, Alpha Eridani (α Eri), is a class B hydrogen-fusing dwarf located in the constellation Eridanus. Its estimated luminosity is 3,150 times that of the… Read More »Achernar

Polaris

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north star

Polaris, Alpha Ursae Minoris (α UMi), commonly known as the North Star, is the closest relatively bright star to the north celestial pole. It lies… Read More »Polaris